commutative:  true,
		clobberFlags: true,
		asm:          x86.AMULQ,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 1},     // AX
				{1, 49151}, // AX CX DX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R15
			},
			clobbers: 4, // DX
			outputs: []outputInfo{
				{1, 0},
				{0, 1}, // AX
			},
		},
	},
	{
		name:         "HMULQ",
		argLen:       2,
		clobberFlags: true,

		v.AddArg2(y, x)
		return true
	}
	return false
}
func rewriteValueAMD64_OpAMD64HMULQ(v *Value) bool {
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (HMULQ x y)
	// cond: !x.rematerializeable() && y.rematerializeable()
	// result: (HMULQ y x)
	for {
		x := v_0
		y := v_1
		if !(!x.rematerializeable() && y.rematerializeable()) {
			break
		}
		v.reset(OpAMD64HMULQ)
		v.AddArg2(y, x)